[Sonic Mighty 8K] Replacing the LED

The LED Chip-on-Board (COB) is an essential component in Sonic Mighty 8K that projects UV light through the LCD to cure resin and create your 3D models. However, the LED may experience wear and tear over time and eventually become burnt out.

Replacing the LED is therefore necessary to ensure that the printer is functioning optimally and producing high-quality prints consistently. In this article, we'll guide you through the process of replacing the LED in your Sonic Mighty 8K.

For instructions on how to replace the LED, watch the video:

Removing the Old LED Chip-on-Board

1. Turn off the printer and disconnect the power cable
2. Loosen the 4 screws on the front case and the 8 screws on the rear case

3. Remove the front case and the rear case
4. Detach the motor cable
5. Loosen the nut connecting the earthing wire
6. Open the cable clip and detach the LCD ribbon cable that connects to the mainboard
7. Loosen the 8 screws on the printer's platform and remove the top half of the printer
8. Disconnect the 2 pairs of red and black wire from the LED driver board
   
9. Loosen the 4 screws that secure the LED driver board and remove it
10. Loosen the black lens hood and remove it
11. Loosen the 4 screws on the LED lens and remove it (see the yellow circle in the picture below)
    
12. Take the old LED Chip-on-Board out

Installing the New LED Chip-on-Board

1. Place a new LED chip-on-board onto the heat sink
2. Install the LED lens onto the chip-on-board
3. Attach the black lens hood onto the LED lens
4. Secure the LED driver board back into place
5. Reconnect the red and black wire pairs from the LED driver board
6. Put the top half platform onto the base and secure it in place by tightening the 8 screws
7. Tighten the 8 screws on the printer's platform to secure it in place
8. Reattach the LCD ribbon cable to the mainboard
9. Tighten the nut connecting the earthing wire
10. Reattach the motor cable
11. Reinstall the front case and rear case
12. Perform LCD test to ensure that the LED is functioning properly
13. Done

Remember to handle the components with care during reinstallation and to tighten all screws and cables securely